AI-102 Implement an agentic solution — 20 Questions

Question 1

You are building an agentic solution using Microsoft Semantic Kernel. The agent must autonomously decide when to call an external API to fetch real-time data. You want to minimize token usage and avoid unnecessary API calls. Which planner configuration should you use?

Accepted Answer

Use a SequentialPlanner with a stepwise strategy and explicit function parameter constraints. Option D is correct because a SequentialPlanner combined with a stepwise strategy ensures the agent only invokes the API when the context explicitly requires it, reducing token waste. Option A is incorrect because AutoInvoke with greedy planning may over-call APIs. Option B is incorrect because ManualInvoke requires user intervention, defeating autonomy. Option C is incorrect because ParallelPlanner may invoke multiple APIs concurrently, increasing token usage.

Answer

Use a ManualInvoke kernel with a sequential planner

Answer

Use a ParallelPlanner with a function-calling model

Answer

Use an AutoInvoke kernel with a greedy action planner

Question 2

You are implementing an agentic solution using Azure AI Agent Service. The agent needs to maintain conversation context across multiple turns. You configure the agent with a custom prompt that includes a 'system message' and 'few-shot examples'. However, after a few turns, the agent starts repeating the same responses. What is the most likely cause?

Accepted Answer

The 'max_context_length' is set too low, causing earlier turns to be truncated. Option B is correct because a low maximum context length truncates earlier conversation turns, causing the agent to lose context and repeat responses. Option A is incorrect because the token limit per request affects the length of individual responses, not repetition. Option C is incorrect because the Azure OpenAI API does not recycle context unless explicitly configured. Option D is incorrect because changing temperature affects randomness, not repetition due to context loss.

Answer

The 'max_tokens' parameter is set too low for the response

Answer

The agent is using a 'context recycling' feature that resets after each turn

Answer

The temperature is set too high, causing the model to become deterministic

Question 3

Your organization is deploying an agentic solution using Microsoft Copilot Studio. The agent must be able to escalate to a human agent when it cannot resolve a user's request. You need to ensure that the escalation includes the full conversation history. What should you configure?

Accepted Answer

Add a 'Transfer conversation' action and set it to include the full transcript. Option C is correct because 'Transfer conversation' automatically passes the full transcript to the human agent. Option A is incorrect because 'Create a ticket' does not transfer the conversation. Option B is incorrect because 'End conversation' terminates without escalation. Option D is incorrect because 'Start a new topic' does not include history.

Answer

Add an 'End conversation' action and configure a fallback

Answer

Add a 'Create a ticket' action in the topic

Answer

Add a 'Start a new topic' action with context variables

Question 4

You are designing an agentic solution using Azure AI Agent Service with a custom skill that calls an external REST API. The API has rate limits: 100 requests per minute per client. You need to ensure the agent respects this limit without degrading user experience. Which approach should you take?

Accepted Answer

Use a token bucket rate limiter with a shared counter stored in Azure Cache for Redis. Option D is correct because a token bucket with a shared counter across all agent instances ensures global rate limiting without dropping requests unexpectedly. Option A is incorrect because 'retry-after' headers require the agent to handle 429 responses, which can degrade UX. Option B is incorrect because exponential backoff can cause delays. Option C is incorrect because a fixed delay per request does not adapt to varying traffic.

Answer

Set a fixed delay of 600ms between each API call

Answer

Configure the skill to handle HTTP 429 responses with retry-after logic

Answer

Implement exponential backoff in the skill code

Question 5

You are building an agentic solution using Microsoft Semantic Kernel. The agent needs to orchestrate multiple plugins. One plugin returns a large dataset that exceeds the model's context window. What is the best way to handle this?

Accepted Answer

Use a summarization plugin to condense the data before passing it to the model. Option B is correct because summarizing the data reduces its size while preserving key information. Option A is incorrect because truncation may lose critical data. Option C is incorrect because splitting into multiple calls increases latency and tokens. Option D is incorrect because marking as sensitive does not solve the size issue.

Answer

Split the data into multiple smaller API calls and combine results

Answer

Truncate the data to fit the context window

Answer

Configure the plugin to return only a subset of the data and mark the rest as sensitive

Question 6

You are using Microsoft Copilot Studio to create an agent that helps users reset their passwords. The agent should first verify the user's identity using multi-factor authentication (MFA) before proceeding. Which feature should you configure?

Accepted Answer

Configure Authentication settings to require Microsoft Entra ID authentication with MFA policy. Option C is correct because 'Authentication' in Copilot Studio allows you to require Microsoft Entra ID sign-in with MFA. Option A is incorrect because 'Power Automate flow' can call MFA but is not the primary configuration. Option B is incorrect because 'Variable' does not enforce authentication. Option D is incorrect because 'Topic trigger' initiates the topic but does not enforce authentication.

Answer

Add a variable to store the user's identity status

Answer

Add a Power Automate flow that calls Microsoft Entra ID MFA

Answer

Use a 'Sign in' topic trigger from the customer channel

Question 7

You are implementing an agentic solution using Azure AI Agent Service with multiple agents that need to collaborate. Each agent has access to different knowledge bases. You want to ensure that the agents can share context and hand off tasks to each other seamlessly. Which architecture should you use?

Accepted Answer

Use a supervisor agent that delegates to specialized agents, with a shared context store in Azure Cosmos DB. Option A is correct because a supervisor agent with a shared context store allows coordination and handoff. Option B is incorrect because separate independent agents lack coordination. Option C is incorrect because sequential chaining limits flexibility. Option D is incorrect because a single monolithic agent defeats the purpose of specialization.

Answer

Create a single monolithic agent that includes all knowledge bases

Answer

Deploy each agent independently and configure them to call each other via HTTP

Answer

Chain the agents sequentially, passing output from one to the next

Question 8

You are developing an agentic solution that uses Azure AI Search as a knowledge base. The agent needs to retrieve the most relevant documents based on a user query. You notice that the agent sometimes returns irrelevant results. Which configuration should you adjust?

Accepted Answer

Increase the 'top' parameter to retrieve more candidate documents. Option B is correct because increasing the number of results gives the agent more context to choose from, reducing irrelevant returns. Option A is incorrect because decreasing the search score threshold may include more irrelevant results. Option C is incorrect because semantic ranking improves relevance but may not help if the initial retrieval is poor. Option D is incorrect because changing the analyzer affects tokenization, not relevance directly.

Answer

Change the language analyzer to a different language

Answer

Disable semantic ranking

Answer

Decrease the minimum search score threshold

Question 9

You are using Microsoft Copilot Studio to create an agent that handles customer support. The agent needs to understand the user's intent from free-text input. Which feature should you use to map user utterances to specific topics?

Accepted Answer

Define trigger phrases for each topic. Option D is correct because 'Trigger phrases' in Copilot Studio are used to match user utterances to topics. Option A is incorrect because 'Entities' extract specific information, not intent. Option B is incorrect because 'Variables' store data. Option C is incorrect because 'Actions' perform operations.

Answer

Configure variables to capture user input

Answer

Add actions to process the input

Answer

Create custom entities to extract key phrases

Question 10

You are designing an agentic solution using Azure AI Agent Service. The agent needs to perform actions on behalf of users, such as sending emails and updating databases. The solution must use managed identities for authentication to Azure resources. Which TWO configurations are required?

Accepted Answer

Use DefaultAzureCredential in the agent's code to authenticate to Azure services. Options B and D are correct. B: The agent must have a managed identity assigned to authenticate to resources like Microsoft Graph and Azure SQL Database. D: The agent's code must use the managed identity to acquire tokens, typically via DefaultAzureCredential. Option A is incorrect because connection strings expose secrets. Option C is incorrect because RBAC permissions are assigned to the managed identity, not the agent's service principal directly. Option E is incorrect because connection strings are not used with managed identities.

Answer

Store connection strings in Azure Key Vault and reference them in the agent's configuration

Answer

Create a service principal in Microsoft Entra ID and assign RBAC roles to the agent's resource

Answer

Configure the agent to use an API key for each external service

Question 11

You are building an agentic solution using Microsoft Semantic Kernel. The agent uses a planner to orchestrate multiple functions. You want to improve the planner's ability to handle complex user requests that involve multiple steps. Which THREE strategies should you implement?

Accepted Answer

Enable the planner to ask the user for clarification when the request is ambiguous. Options B, C, and E are correct. B: Providing few-shot examples helps the planner understand complex tasks. C: Creating higher-level composite functions reduces the number of steps the planner needs to orchestrate. E: Allowing the planner to ask clarifying questions improves accuracy. Option A is incorrect because a simple prompt reduces capability. Option D is incorrect because limiting functions restricts the planner.

Answer

Limit the number of available functions to reduce planning overhead

Answer

Use a simple, generic prompt to avoid overfitting

Question 12

You are using Microsoft Copilot Studio to create an agent that handles product returns. The agent needs to collect the user's order number and reason for return. Which TWO features should you use to capture this information?

Accepted Answer

Use variables to store the order number and reason. Options A and D are correct. A: Entities allow extraction of specific data like order numbers. D: Variables store the collected information for later use. Option B is incorrect because trigger phrases map intent, not capture data. Option C is incorrect because Power Automate flows process data but are not for initial capture. Option E is incorrect because topics handle conversation flows, not data capture.

Answer

Use Power Automate flows to parse the user's input

Answer

Define trigger phrases for each topic

Answer

Create separate topics for each type of return

Question 13

You deploy an agent using the ARM template shown. Users report that the agent cannot answer questions about uploaded documents. What is the most likely cause?

Accepted Answer

The file_search tool is disabled in the agent configuration. Option B is correct because 'file_search' is disabled in the template, so the agent cannot search uploaded documents. Option A is incorrect because code_interpreter is enabled. Option C is incorrect because the function is correctly defined. Option D is incorrect because the model is valid.

Answer

The function tool is missing required parameters

Answer

The model specified is not supported for file operations

Answer

The code_interpreter tool is enabled, which conflicts with file_search

Question 14

You are reviewing the configuration of an agent deployed via Azure AI Agent Service, as shown. The agent fails to authenticate when calling the reset_password function, which requires a token from Microsoft Entra ID. What is the most likely issue?

Accepted Answer

The agent's authentication is set to api_key instead of managed identity or OAuth. Option C is correct because the security section uses api_key authentication, which is not suitable for calling Microsoft Entra ID-protected functions. Option A is incorrect because the model is supported. Option B is incorrect because the functions are properly defined. Option D is incorrect because conversation_starters do not affect authentication.

Answer

The conversation_starters are preventing the agent from calling functions

Answer

The reset_password function is missing required parameters

Answer

The model version is outdated and does not support function calling

Question 15

You run the PowerShell script shown to audit your Azure AI Agent Service agents. The script outputs that several agents have no tools configured. What is the impact on those agents?

Accepted Answer

The agents can only respond to queries using the model's built-in knowledge, without ability to perform actions. Option A is correct because without tools, the agent can only respond based on its instructions and model, limiting its capabilities. Option B is incorrect because the agent can still start conversations. Option C is incorrect because the agent can still be deployed. Option D is incorrect because the agent can still be invoked.

Answer

The agents cannot be deployed until tools are added

Answer

The agents cannot start conversations with users

Answer

The agents will use default tools provided by Azure

Question 16

A company is building an agentic solution using Microsoft Copilot Studio. The agent needs to retrieve customer order status from an external CRM API. The API requires OAuth 2.0 authentication with client credentials. Which connector configuration should the developer use?

Accepted Answer

Use the HTTP connector with OAuth2 client credentials grant type.. Option A is correct because HTTP with OAuth2 client credentials is the appropriate way to authenticate with an external API that uses OAuth 2.0. Option B is wrong because API Key is not OAuth. Option C is wrong because Power Automate with native CRM connector might not support OAuth client credentials. Option D is wrong because AI Builder is not for API authentication.

Answer

Use a custom connector with API Key authentication.

Answer

Use a Power Automate flow with a CRM connector that uses service principal.

Answer

Use an AI Builder model to call the API.

Question 17

You are designing an agentic solution in Microsoft Foundry that uses a custom agent to answer questions about internal policies. The agent uses GPT-4o with retrieval augmented generation (RAG) on documents stored in Azure AI Search. Users report that the agent sometimes provides answers that contradict the retrieved documents. Which two actions should you take to improve response fidelity?

Accepted Answer

Set the 'strict grounding' parameter to true and limit the number of source documents to 3.. Option D is correct because grounding with retrieved documents reduces hallucination. Option B is correct because limiting source documents reduces noise. Option A is wrong because increasing temperature increases randomness. Option C is wrong because system message alone doesn't guarantee fidelity. Option E is wrong because chunk size optimization is about performance, not contradiction.

Answer

Increase the temperature parameter to 0.9.

Answer

Increase the chunk size in Azure AI Search to 2000 tokens.

Answer

Add a system message instructing the model to only use provided context.

Question 18

Refer to the exhibit. You are deploying an agent in Microsoft Foundry using the ARM template snippet above. The agent needs to call Microsoft Graph API to reset a user's password. However, the deployment fails with an authorization error. What is the most likely cause?

Accepted Answer

The managed identity does not have the 'User.ReadWrite.All' delegated permission for Microsoft Graph.. Option B is correct because the managed identity needs Graph API permissions assigned. Option A is wrong because the endpoint is valid. Option C is wrong because the resourceId is correctly specified. Option D is wrong because the apiVersion is a preview version but that doesn't cause authorization errors.

Answer

The Graph API endpoint URL is incorrect.

Answer

The apiVersion '2025-01-01-preview' is not supported for agent deployments.

Answer

The resourceId for managed identity is missing the 'Microsoft.ManagedIdentity/userAssignedIdentities' resource type.

Question 19

A company is building an agentic solution using Azure AI Agent Service. The agent needs to execute a Power Automate flow when a user requests a vacation approval. Which action type should the developer add to the agent's action definition?

Accepted Answer

powerAutomateFlow. Option D is correct because 'powerAutomateFlow' is the action type for executing Power Automate flows. Option A is wrong because 'openApi' is for REST APIs. Option B is wrong because 'httpRequest' is for direct HTTP calls. Option C is wrong because 'function' is for custom code functions.

Answer

httpRequest

Answer

openApi

Answer

function

Question 20

You are troubleshooting an agent built with Microsoft Copilot Studio. The agent uses a custom topic to check inventory levels. The topic calls a Power Automate flow that returns JSON with 'inStock' boolean. The agent sometimes says 'Item is in stock' even when the flow returns false. What is the most likely cause?

Accepted Answer

The topic's condition is using a variable that is not being updated with the flow output.. Option C is correct because the agent's response might be based on the topic's condition, not the flow output. Option A is wrong because if the flow fails, the agent wouldn't get a response. Option B is wrong because parsing JSON is standard. Option D is wrong because the agent doesn't require a specific variable type.

Answer

The Power Automate flow has a timeout and returns default true.

Answer

The agent's response is based on a different variable that defaults to true.

Answer

The agent's topic is not parsing the JSON output correctly.